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本文研究了近几年来我国发生的一系列强地震以及部分中强地震后,短时间内余震活动的时空分布特征.结果表明,不同类型的地震序列,在大震后短时间内余震频度衰减和余震区的变化过程上有明显差别.作者认为,这种差别有可能作为一次强地震后及时对地震类型和趋势进行判断的依据之一.
In this paper, the spatial and temporal distribution of aftershock activity in a short period of time after a series of strong earthquakes occurred in our country in recent years and some moderate-strong earthquakes are studied.The results show that the aftershock frequency of different types of earthquakes decays shortly after the earthquake And aftershock zone.The authors believe that this difference may be used as a basis for judging the types and trends of earthquakes in time after a strong earthquake.